The Disk,valve, cataloged under National Stock Number 4820-01-201-8309, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-201-8309 |
| Primary Part Number | 64341 PIECE 10 1IN |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Pressure Rating | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Temp Rating | 500.0 FAHRENHEIT MAXIMUM DEGF |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 64341 PIECE 10 1IN PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 64341 | D/9 Drawing number reference only William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
NSN 4820-01-201-8309 is a Disk,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-201-8309 has 1 manufacturer part number on file: 64341 PIECE 10 1IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 64341 PIECE 10 1IN: Pressure Rating: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Temp Rating: 500.0 FAHRENHEIT MAXIMUM DEGF; Material: STEEL CORROSION RESISTING. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.